Firefox does not play any Flash even with the latest Flash installed

Here are the issues:
1. If i want to watch videos on Youtube, it just turns out black (clicking on the video can trigger the pause icon though).
2. If i want to watch some website with Flash, it just loads the first 2 secs and then the Flash freezes.

I have read all the help information in the forum and tried many solutions (see below) but none of them worked:

- Uninstall and reinstall Firefox
- Uninstall and reinstall Flash:

1) when entered Youtube without Flash installed, the website asked me to install Flash but it somehow ended to a failure so I had to manually download and install
2) after installing Flash, I also went to: http://www.adobe.com/software/flash/about/. I can see the version info but not the animation of the banner - it just shows a red box and then disappears after a few secs.

I am using WIn 7 (64 bits), with Firefox 24.0 and Flash11_8_800_168. I have spent too much time on this issue and now I am using Chrome to watch the video.

Hope this can be solved with your help.

Thanks!
-Jeffery

Hello,
My firefox cannot play any Flash for months.
Here are the issues:
1. If i want to watch videos on Youtube, it just turns out black (clicking on the video can trigger the pause icon though).
2. If i want to watch some website with Flash, it just loads the first 2 secs and then the Flash freezes.
I have read all the help information in the forum and tried many solutions (see below) but none of them worked:
- Uninstall and reinstall Firefox
- Uninstall and reinstall Flash:
1) when entered Youtube without Flash installed, the website asked me to install Flash but it somehow ended to a failure so I had to manually download and install
2) after installing Flash, I also went to: http://www.adobe.com/software/flash/about/. I can see the version info but not the animation of the banner - it just shows a red box and then disappears after a few secs.
- Reset Firefox
- Use the browser safe mode
- Install the latest Realplayer
- Scan the plugin status on the website: http://www.mozilla.org/en-US/plugincheck/
- Turn off the hardware acceleration in the Advanced option
- Regenerate the "pluginreg.dat" file
I am using WIn 7 (64 bits), with Firefox 24.0 and Flash11_8_800_168. I have spent too much time on this issue and now I am using Chrome to watch the video.
Hope this can be solved with your help.
Thanks!
-Jeffery

Chosen solution

Hi Jeffery, I am not familiar with many of your plugins. In case one of them could be affecting Flash content, could you disable any that you do not use on a regular basis? (Set to "Never Activate")

Helpful Reply

What hardware are you on? Flash is always a finicky beast, especially on older hardware. This is not an entirely uncommon problem. Try looking at this support article and see if that helps.

What hardware are you on? Flash is always a finicky beast, especially on older hardware. This is not an entirely uncommon problem. Try looking at this [[Flash Plugin - Keep it up to date and troubleshoot problems|support article]] and see if that helps.

Hi Jeffery, it sounds as though you're halfway through my list of standard approaches to Flash problems.
(1) If you use any recorders/downloaders that interact with Flash media (either external software or Firefox add-ons), make sure they are as up-to-date as possible, or disable them temporarily.
(2) Disable hardware graphics acceleration in Firefox and in Flash
(A) In Firefox -- un-check the box here and restart:
orange Firefox button (or Tools menu) > Options > Advanced > General > "Use hardware acceleration when available"
(B) In Flash -- see this support article from Adobe: http://helpx.adobe.com/flash-player/kb/video-playback-issues.html#main_Solve_video_playback_issues
(3) Disable protected mode (Windows Vista/7/8)
See this support article from Adobe under the heading "Last Resort": [http://forums.adobe.com/message/4468493#TemporaryWorkaround Adobe Forums: How do I troubleshoot Flash Player's protected mode for Firefox?]

Question owner

Thank you for the suggestions. I have tried all of them but still not working :(

By the way, the Flash menu always appears in the right bottom when I tried to open it (see attached picture).

I cannot either enter the setting in Flash. I can right click to trigger the Flash menu but after clicking "Setting" it does nothing. The "Global Setting" can be opened somehow.

Thank you for the suggestions. I have tried all of them but still not working :(
By the way, the Flash menu always appears in the right bottom when I tried to open it (see attached picture).
I cannot either enter the setting in Flash. I can right click to trigger the Flash menu but after clicking "Setting" it does nothing. The "Global Setting" can be opened somehow.

Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen) as a test to see if that helps.

Did you disable hardware acceleration in Firefox and in the Flash plugin (you need to close and restart Firefox)?
*Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"
*http://kb.mozillazine.org/Flash#Troubleshooting
Boot the computer in Windows Safe Mode with network support (press F8 on the boot screen) as a test to see if that helps.

Chosen Solution

Hi Jeffery, I am not familiar with many of your plugins. In case one of them could be affecting Flash content, could you disable any that you do not use on a regular basis? (Set to "Never Activate")

orange Firefox button (or Tools menu) > Add-ons > Plugins category

Hi Jeffery, I am not familiar with many of your plugins. In case one of them could be affecting Flash content, could you disable any that you do not use on a regular basis? (Set to "Never Activate")
orange Firefox button (or Tools menu) > Add-ons > Plugins category

Question owner

Hi, I disabled a few plugins and it did work! Now I can play all the Flash!

The wired part is when I activated all the plugins, Firefox can still play Flash, so I don't know which one caused the problem.

Anyways, I appreciate your help. I can finally use Firefox after months.

Cheers!

Hi, I disabled a few plugins and it did work! Now I can play all the Flash!
The wired part is when I activated all the plugins, Firefox can still play Flash, so I don't know which one caused the problem.
Anyways, I appreciate your help. I can finally use Firefox after months.
Cheers!